Tired of the confusion around pleural effusions: Adenosine deaminase detection sets the record straight!

Table 2 Diagnostic performance parameters (Receiver operating characteristic curve analysis)

Parameter	Result, %	95%CI
Optimal cutoff (U/L)	≥ 9.00	-
Sensitivity	77.69	69.22-84.75
Specificity	68.75	49.99-83.88
Positive predictive value	90.38	83.03-95.29
Negative predictive value	44.90	30.67-59.77
AUC value	81.07	0.7174-0.8754
Diagnostic accuracy	75.82	68.24-82.37

AUC: Area under the curve.